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Add more logging to debug slow startup (#8264)

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I'm hoping this will provide some pointers for debugging
https://github.com/matrix-org/synapse/issues/7968.
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Richard van der Hoff 2020-09-07 13:36:02 +01:00 • committed by GitHub
parent 96312536f2
commit 0dae7d80bf
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5 changed files with 33 additions and 7 deletions
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23
synapse/storage/databases/__init__.py
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@ -47,9 +47,14 @@ class Databases:
engine = create_engine(database_config.config)
with make_conn(database_config, engine) as db_conn:
logger.info("Preparing database %r...", db_name)
logger.info("[database config %r]: Checking database server", db_name)
engine.check_database(db_conn)
logger.info(
"[database config %r]: Preparing for databases %r",
db_name,
database_config.databases,
)
prepare_database(
db_conn, engine, hs.config, databases=database_config.databases,
)
@ -57,7 +62,9 @@ class Databases:
database = DatabasePool(hs, database_config, engine)
if "main" in database_config.databases:
logger.info("Starting 'main' data store")
logger.info(
"[database config %r]: Starting 'main' database", db_name
)
# Sanity check we don't try and configure the main store on
# multiple databases.
@ -72,7 +79,9 @@ class Databases:
persist_events = PersistEventsStore(hs, database, main)
if "state" in database_config.databases:
logger.info("Starting 'state' data store")
logger.info(
"[database config %r]: Starting 'state' database", db_name
)
# Sanity check we don't try and configure the state store on
# multiple databases.
@ -85,7 +94,7 @@ class Databases:
self.databases.append(database)
logger.info("Database %r prepared", db_name)
logger.info("[database config %r]: prepared", db_name)
# Closing the context manager doesn't close the connection.
# psycopg will close the connection when the object gets GCed, but *only*
@ -98,10 +107,10 @@ class Databases:
# Sanity check that we have actually configured all the required stores.
if not main:
raise Exception("No 'main' data store configured")
raise Exception("No 'main' database configured")
if not state:
raise Exception("No 'state' data store configured")
raise Exception("No 'state' database configured")
# We use local variables here to ensure that the databases do not have
# optional types.